中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
An efficient mechanism for enhancing the thermoelectricity of nanoribbons by blocking phonon transport in 2d materials

文献类型:期刊论文

作者Liu,Yue-Yang1,2; Zeng,Yu-Jia1; Jia,Pin-Zhen1; Cao,Xuan-Hao1; Jiang,Xiangwei2; Chen,Ke-Qiu1
刊名Journal of physics: condensed matter
出版日期2018-06-13
卷号30期号:27
ISSN号0953-8984
关键词Thermoelectric effects Phonons in mos2 Nanoribbons Thermal transport
DOI10.1088/1361-648x/aac7f5
英文摘要Abstract inspired by the novel mechanism of reducing thermal conductivity by local phonon resonance instead of by inducing structural defects, we investigate the effect of side branching on the thermoelectric properties of nanoribbons, and prove that side branching is a highly efficient mechanism for enhancing the thermoelectricity of different kinds of nanoribbons. for both armchair and zigzag nanoribbons, the side branches result in not only significant blocking of phonon transport but also notable increase of the seebeck coefficient. consequently, the thermoelectric figure of merit of the armchair nanoribbon is boosted from 0.72 to as high as 1.93, and the originally non-thermoelectric metallic zigzag nanoribbon is turned into a thermoelectric material due to the appearance of the band gap induced by the side branches. these results mean that the mechanism of branching is not only very efficient, but also takes effect regardless of the original properties of the nanoribbons, and thus will hold great promise for its application in the thermoelectric field.
语种英语
出版者IOP Publishing
WOS记录号IOP:0953-8984-30-27-AAC7F5
URI标识http://www.irgrid.ac.cn/handle/1471x/2429476
专题半导体研究所
作者单位1.Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, People’s Republic of China
2.Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, People’s Republic of China
推荐引用方式
GB/T 7714
Liu,Yue-Yang,Zeng,Yu-Jia,Jia,Pin-Zhen,et al. An efficient mechanism for enhancing the thermoelectricity of nanoribbons by blocking phonon transport in 2d materials[J]. Journal of physics: condensed matter,2018,30(27).
APA Liu,Yue-Yang,Zeng,Yu-Jia,Jia,Pin-Zhen,Cao,Xuan-Hao,Jiang,Xiangwei,&Chen,Ke-Qiu.(2018).An efficient mechanism for enhancing the thermoelectricity of nanoribbons by blocking phonon transport in 2d materials.Journal of physics: condensed matter,30(27).
MLA Liu,Yue-Yang,et al."An efficient mechanism for enhancing the thermoelectricity of nanoribbons by blocking phonon transport in 2d materials".Journal of physics: condensed matter 30.27(2018).

入库方式: iSwitch采集

来源:半导体研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。